Get Copyright Rights Right

Be careful of accidental copyright infringement! It can be easy to unknowingly use royalty-free music or graphic assets that are licensed to someone else (like a friend or a company you work for), but not to you personally. You may not be aware that these assets include licensing agreements that say (among other things) that, "You may not sell, sublicense, loan, give, or transfer any part of the contents to a third-party". That means, if you didn't pay for it, you can't use it. -- Check your usage to make sure you are in the right with copyright.